When it emails someone bout an update to a thread, the board is sending the real name of the person who updated the thread. That is not expected as normal default behaviour on modern BBS systems and I was unable to finding a privacy settings page.

As it happens, my real name already leaked when the bug reporting software was changed to Atlassian.

(If the board were hosted in the EU, you would have been required to have a privacy policy page on the web site.)